Fourths to george thomas mclauthlin



(No Mode1.)

- J.'NAYLOR, Jr.

SIRUP PURIFIER.

Patented Nov. 20,1894.

INVENTOH WITNESSES. 9/4 2. 43mm:

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U ITED STATES PATENT OFFICE.

JAMES NAYLOR, JR, OF BOSTON, MASSACHUSETTS, ASSIGNOR OF THREE- FOURTHSTO GEORGE THOMAS MCLAUTHLIN, OF SAME PLACE.

SIRUP-PURIFIER.

SPECIFICATION-forming part of Letters Patent No. 529,662, dated November20, 1894.

Application filed November 14, 1891- Serial No. 411,887- (No model.)

To a. whom it may concern.-

Be it known that I, JAMES NAYLOR, Jr., a citizen of the United States,and a resident of Boston, in the county of Suffolk and State ofMassachusetts, have invented new and useful-Improvements insirup-Purifiers, of which the following, taken in connection with theaccompanying drawings, is a specification.

The object of my improvements is to produce sirup at a reduced cost andwhich will ter reduced to such only as is required for chemical action.

In the drawings:--Figure 1 shows a side elevation of the wholeapparatus; Fig. 2, a sectional elevation of the bowl and appurtenances;and Fig. 3 a full sized, horizontal section of the skimmers.

A is a heating tank, having a steam coil B within it, and passingthrough it to the out- The steam supply pipe is provided with aregulating valve 0. The supply of unclarified sirup flows into the tankthrough the pipe D. Another pipe E leads from the tank to the machineand is also provided with a regulating valve 6.

The machine has the usual imperforate bowl F, surrounded by a cover orcase G, and may be driven by any devised means but preferably by what isshown. The normal peripheryspeed of the bowl should be four miles perminute.

Referring to Fig. 2 the bowl F is divided into a lower compartment f andan upper compartmentf by the horizontal partition H havingtthecommunicating openings h it through it, and the blades h h secured toit, and extending fromthe periphery to within one mers are locatedrespectively at the uppermost part of each compartment and communicatewith their respective discharge pipes i andj.

K K are automatic check valves.

L L are spheres of a specific gravity about 1.7 or between that of thesirup and the heavy section of the skimmers I and J. The outer diameterof the skimmer is alike along its length, with a hole through it ofdifferent diameter as shown, the bevel to form the skimming edge beingon the inside thereof.

The operation is as followsz-Orude sirup is run through the pipe D tothe tank A. Steam is admitted through the valve 0 to the coil B whichheats the sirup to a proper temperature. The flow of heated sirup isregulated to the machine by the-stop cock e in the pipe E, through whichit passes to enter the lower compartmentfof the bowl, where theimpurities are at once separated from the sirup; the heavy mineral andorganic matter being thrown to the periphery by centrifugal force,

and the light albuminoids and gum to the surface. The partiallyclarified sirup in its circulation through the bowl passes through theholes h h andinto the upper compartment f, when a further clarificationgoes on until the sirup enters the skimmer I and is carried through thepipe ito proper receptacles. Just before the sirup enters the skimmer itis thoroughly clarified but not in all cases pure. The high speed of thebowl and the peculiar opening in the skimmer, (see Fig. 3) are such thatmuch air is thoroughly commiugled with it, which has the good efiect ofremoving all taint or flavor foreign to the nature of the sirup. Theskimmer J is set farther away from the surface of the sirup than theskimmer I so as to insure no sirup going into it. The light impuritiesaccumulate on the surface by the well known natural law of dense liquidssupporting lighter ones at a higher elevation; and thus reach theskimmer and are continuously discharged through the pipe 9 into theannular trough M. The heavy impurities collect at the periphery, and onaccumulation the valves K K automatically [0 open allowing them toescape; when the valves again close. These results are obtained throughthe difference in the specific gravity of the valve spheres, of theheavy impurities and of the sirup. Both refuse discharges go into theannular trough M and leave the machine at the spout N and are thusconducted to the receptacle 0.

It is well known in cream and milk separation that the new milk is bestseparated at a certain temperature and is always raised to such by anysimple means. Crude sirup is necessarily given a much higher temperatureto facilitate its pu rification in passing through this machine. Heatingthe crude sirup is not broadly claimed; neither are the means by whichitis heated, but it must be understood that it is by the heatedcondition of the crude sirup that the purification is efiected by themachine.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a centrifugal sirup purifier the combination with a supportedarbor and bowl, said bowl divided into equal compartments by thehorizontal partition H; of means for maintaining an inflow of crudesirup thereto, a discharge for refined sirup, a discharge for the lightimpurities and dischargedirectly outward from and through the openingsin the periphery for the heavy impurities as herein shown and described.

2. In a centrifugal sirup purifier the combination with the supportedarbor and bowl, said bowl provided with automatic means of discharge andthe partition Hat its greatest internal diameter; of the shimmers I andJ placed above and below said partition and means whereby an infiow ismaintained to said bowl as herein set forth.

8. In a centrifugal sirup purifier the com bination with the supportedarbor and bowl,.

said bowl having an upper and. lower compartment and providedwith valvesat its periphery to serve both compartments; of means for inflow of thecrude sirup and discharge of the refined as herein set forth.

4. The combination with the mounted bowl having equal upper and lowercompartments with communicating openings; of the inlet pipe E, skimmersJ and I, pipes 7' and 't' and the automatic check valves K K as shownand described.

5. In a sirup purifier the combination with a centrifugal separatingmechanism provided with automatic discharge valves K K for heavyimpurities, a discharge for light impurities consisting of the skimmer Jset below the partition H and the pipe jleading therefrom; of means forconducting the said discharged impurities consisting'of the annulartrough M and outlet spout Nas herein set forth.

6. In a sirup purifier the combination with a mounted arbor and bowlprovidedwith a horizontal partition I-I having projections la extendingtherefrom; of the automatic discharge valves K K substantially as shownand described.

7. The combination with a mounted bowl; of the skimmer Lhaving itsexternal diame' ter uniform along its length and the bevel to formtheskimming edge upon the inside thereof, and its supporting andconducting pipe 71 secured to the case G as constituting the means ofdischarge forrefined sirup'as herein shown and described.

8. In a centrifugal sirup purifier the combination with a supportedtrborand bowl, said bowl provided with the partition H and the valves K Kboth in the same horizontal plane, said partition dividing said bowlinto two equalseparating compartments; of means for inflow thereto andseparate discharges therefrom of the lightaud heavy impurities 9 and therefined "sirup as herein set forth.

In testimony whereof [have signed my name to this specification, inthepresence of two subscribing witnesses,on thisllth day of November, A. D.1891.

JAMES NAYLQR, JR.

Witnesses:

M. W. E. BRUNKHORST, M. B. MCLAUTHLIN}.

